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Finding the Third Proportional to 5,778 and 8,187.75

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Solution

The third proportional to 5,778 and 8,187.75 is: 11,602.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,778 : 8,187.75 = 8,187.75 : x
  2. Step 2: Convert to fraction form
    5,778/8,187.75 = 8,187.75/x
  3. Step 3: Cross multiply
    5,778x = 8,187.75 × 8,187.75
  4. Step 4: Simplify right side
    5,778x = 67,039,250.06
  5. Step 5: Solve for x
    x = 67,039,250.06/5,778
  6. Step 6: Final answer
    x = 11,602.50

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.